According to Newton's law of cooling, th...

According to Newton's law of cooling, the rate of cooling of a body in air is proportional to the difference between the temperature of the body and the temperature of the surrounding air. If the air temperature is `20^(@)C` and the body cools for 20 minutes from `140^(@)Cto80^(@)C`, then the temperature will be `50^(@)C` in

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